This book unveils how the world in the twenty-first century will need to manage our most fundamental resource need, water. It outlines how stakeholders can improve water use in their homes, their businesses, and the world. In particular, it focuses on the role of stakeholders in crafting a twenty-first century paradigm for water. Investors not only drive innovation through direct investment in new technologies but also by highlighting risk and driving reporting and disclosure within the business community. Water Tech highlights the business drivers to address water related issues. These include business disruption, regulatory risk and reputational risk along with opportunities in the commercialization of innovative technologies such as desalination and water reuse and treatment. The authors argue that through increased attention on water scarcity through activities such as reporting and disclosure we are now accelerating innovation in the water industry. They show how we are just now capturing the true cost and value of water and this is creating opportunities for investors in the water sector. The text takes the reader through key aspects of emerging innovative technologies along with case studies and key issues on the path to commercialization. A roadmap of the opportunities in the water sector is presented based on interviews with leading authorities in the water field including innovators, investors, legal, regulatory experts and businesses.